Iran's semi-official news agency (Tasnim) made the claim. Then a bit later they posted photos of the wreckage. OSINT community pieced together that it was actually wreckage of the F-15E that is the topic of this post.
A few minutes ago Tasnim posted photos of a separate wreckage that seems to be of an F-16 that was also downed today.
These events should not be confused with the F-35 that CNN reported was hit a few days ago.